Oral contraceptives, pregnancy, and the veins.
D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D010689:Phlebitis / Q000139:chemically induced*; D011247:Pregnancy; D013923:Thromboembolism / Q000139:chemically induced; D013924:Thrombophlebitis / Q000139:chemically induced*; D014648:Varicose Veins / Q000139:chemically induced*; D014680:Veins / Q000187:drug effects*
D003276:Contraceptives, Oral